Filter.



T. C. LACKLAND.

FILTER..

APPLICATION FILED AUG-3l. I9I5.,

1 ,26 1 ,5 5 8. Patented Apr. 2, 1918.

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T. C. LACKLAND.'

FILTER.

APPLICATION man Aua.3|. 1915.

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my@ M y MM Z ...wo w a s. j 5 5 2, WM/fm l w s nanna orare THOMAS C.LACKLAND, OF NORFOLK, VIRGINIA.

FILTER.

Specification of Letters Patent.

Patented Apr. 2, 1918.

Application led August 31, 1915.4 Serial No. 48,289.

To all whom t may concern:

Be it known that I, THOMAS C. LACKLAND, a citizen of the United States,residing at Norfolk, in the county of Norfolk and State of Virginia,have invented new and useful Improvements in Filters, of which thefollowing is a specieation.

My invention relates to lters, and more particularly to a portable waterfilter which is adapted to be attached to the ordinary water cock orfaucet.

In carrying out my invention it is my purpose to provide a filter whichis adapted to accommodate a filtering material such as paper, which maybe frequently changed without incurring great expense. In order topermit the ready application and removal of the filtering paper I haveconstructed a casing or shell which comprises two hemisphericalsections, one of which rigidly supports the ltering paper therein, theconfronting edges of the sections being detachably connected so as tofacilitate the separation of the sections and permit the readysubstitution of a new filtering material.

Another purpose of my invention is to provide a lter so constructed asto permit the same to be rapidly applied to and removed from a faucet.

With the above and other objects in view, the invention consists in thefeatures of construction, combination and arrangement of partshereinafter' described and claimed, reference being had to theaccompanying drawings, in which:

Figure 1 is a side elevation of my device showing it applied to afaucet;

Fig. 2 is a vertical section;

Fig. 3 is a horizontal section;

Fig. 4c is an enlarged collective view of the filter, showing thesections in perspective;

Fig. 5 is a top plan view of the perforated plate supporting member forthe filtering paper; and

Fig. 6 is a horizontal sectional View of the metallic ring.

Fig. 7 is a fragmentary view of the inner wall of the uppersemi-spherical member showing the inclined slots formed therein.

Referring to the drawings in detail, the body of the filter consists oftwo hemispherical members, l designating the upper member and 2 thelower member. The upper member is provided with a centrally arrangednipple 3 which is split longitudinally, as at 4. Mounted upon the nippleand capable of sliding movement thereon is a clamping nut 5. To secure arigid water-tight connection between the nipple and the nozzle of thefaucet 6 I have provided the inside of the nipple with a short flexiblepipe 7, such as rubber or the like, of a corresponding length and whichis adapted to normally lie contiguous to the inner wall of the nipple,whereby upon upwardI movement of the clamping nut 5, owing to thelongitudinal splits, the nipple will be compressed, thereby causing thepipe to snugly engage the nozzle of the faucet. Mounted upon the innerwall of the upper member adjacentl the lower edge thereof are an annularseries of ribs 8 which have the confronting ends thereof spaced to formentrance slots 9. The upper edges of the ribs are inclined, as at 10,from one end to the opposite end. Arranged above the annular series ofribs 8 is an annular rib 11 which is provided with thickened portions 12adjacent each of the ribs 8, said portions having the lower edgesthereof inclined in the opposite direction to the adjacent edge 10 ofthe ribs 8 and cooperating with the same to form inclined slots 13.

The lower end of the lower member 2 is provided with an outlet 14;arranged centrally thereon and in axial alinement with the nipple 3 onthe upper member. |The outer wall of the upper member is provided with aseries of laterally extending lugs 15 adjacent the upper edge thereof,said lugs being adapted to work within the inclined slots 13 whenconnected to the upper member. In the present instance I have shown fourlugs upon the lower member which correspond to the number of slotsformed in the upper member, and I wish it to be understood that anynumber of slots or lugs may be used. As will be hereinafter described,the lower member is provided with operating handles 16 adapted to beused when moving the lugs within the slots 13 to lock the hemisphericalmembers together. Formed upon the inner wall of the easing are a seriesof vertically extending ribs 17, which have their upper ends thickenedto form a support, said ends terminating at a point adjacent the upperedge of the hemispherical member. These vertically extending ribs arearranged at diametrically opposite points and rigidly support aperforated disk or plate 18, the enlarged portions of the ribs engagethe marginal edges of the disk. Mounted upon the disk 18 and engagingthe m rvinal edges thereof isV a metallic annular ring 19 which is lshaped in cross section and which has the horizontal flange thereofengaging the inner wall of the lower member, whereby a substantiallyU-shaped channel is formed to receive a rubber washer 20 which isrectangular in cross section, in this construction it will be seen thata perfectly water-tight connection is formed between the upper and lowermembers when they are in their locked position, the rubber washerserving to prevent escape of the liquid between the confronting edges ofthe members. Arranged upon the top surface of the disk 1S is thefiltering material, it being, in this instance, a sheet of porous paper2l, of a shape corresponding to that of the disk, the marginal edges ofhe sheet lying beneath the ring 19 so that the same will be heldsecurely upon the disk against the force of the water.

lt will be seen from the foregoing construction that when it is desiredto assemble the parts as shown in F ig. l, the disk 18 is placed uponthe vertically extending ribs 17. rlhe filtering material is thenarranged upon the disk so as to lie contiguous thereto. llhe ring 19 andthe washer 2O are then applied to the marginal edges of the paper, ashas been previously described, whereupon the hemispherical member ismoved in a position so as to cause the lugs l5 to register with theentrance slots 9. Upon moving the member upwardly and imparting partialrotary motion thereto by the operating handles 16 the lugs will be movedcircumferentially into the inclined slots 18, whereby the confrontingedges of the respective members will be brouo'ht intov tight engagementwith each other and the members securely locked. lt will be noted thatthe anmnar rib ll is of such a width as to form an abutment for thewasher 2O when the members are in their locked position whereby a watertight joint will be formed between the members and any escaping of theliquid through the confronting edges of the members will be prevented.

From the foregoing construction it will be seen that the filtering papermay be readily applied and removed from the casing and that the lowermember may be quickly attached to the upper member without the use ofnuts, bolts or the like. When it is desired to replace the filteringpaper or clean the interior of the casing, by imparting a reverse rotarymotion to the member the lugs will be withdrawn from the slots,whereupon the members may be separated.

W hen it is desired to apply my improved form of filter to a faucet ofthe common construction the nozzle of the faucet is inserted into therubber pipe 7, and the clamping nut is then moved upwardly, whereby thesplit sections of the nipple will be moved toward each other, thuscausing the pipe to tightly engage the nozzle and securely hold thefilter upon the faucet.

lfn use, the water flowing in at the nipple strikes the 1paper sheet offiltering material, whereby the water is distributed over the entiresurface of the sheet. rlhe water then percolates through thc paper,filtering the same of sand, dirt or the like and finally through theperforated disk, the disk serving to retard the force of the water sothat the filtering material will thoroughly strain the water. rhis diskfurther serves to form a rigid support for the paper 'and prevent thelatter from being broken and disintegrated by the force of the waterthereupon.

Having thus described my invention, l claim:

ln a device of the character described comprising a pair ofsubstantially semispherical members, means for coupling said memberstogether comprising lugs extending outwardly from the periphery of oneof said members adjacent its open end, the inner periphery of the othermember being gnovided with vertical slots extending from its open endand communieating with upwardly inclined slots, the highest points ofsaid inclined slots also communicating with said vertical slots, aninwardly extending annular flange on said second named member, anL-shaped ring supported within said lirst named member and contactingwith its inner periphery, and a resilient ring rectangular in crosssection disposed upon. the horizontal portion of said L-shaped ring andengaging the inner periphery of said first named member and extendingbeyond the open end thereof and engaging said flange said lugs beingengageable in said inclined slots by upward and partial rotary movementof said first named member.

ln testimony whereof l alhx my signature in presence of two witnesses.

HARRY lvl/. CHAPMAN, C. M. Essen.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,4

Washington, n. o.,

